I am trying to use a slider to paginate my php data, something similar to how is done here; http://www.shopstyle.co.uk/browse/necklaces#0_0
How can I go about this as i have no idea the best way.
As I understand your qiestion, a "slider" appears automatically when the page won't fit into the browser's screen.
If you're already using jQuery, you can use the slider plugin.
You can set min/max to the number of pages that you have to handle, and attach an event on to the slide event.
Sorry, I missed "that" slider when went to your link. I wasn't looking for it either. I've never seen that before.